body,html{
  padding-top: 35px;
}
/* 导航 */
.title{
  width: 100%;
  height: 70px;
  line-height: 50px;
  font-size: 18px;
  color: #999;
  text-align: left;
  padding: 10px 30px;
  background: #fff;
  border-bottom: 2px solid #eee;
  box-shadow: 10px 10px 10px #eee;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;
}
/* 搜索 */
.title .search{
  width: 40%;
  height: 100%;
  line-height: 70px;
  padding-top: 13px;
  position: absolute;
  top: 0px;
  left: 0;
  right: 0;
  margin: 0 auto;
}
.title .search .form-control{
  width: 85%;
}
.title #user_name{
  width: 100px;
  height: 100%;
  font-size: 14px;
  line-height: 70px;
  text-align: center;
  position: absolute;
  top: 0px;
  right: 20px;
  cursor: pointer;
  z-index: 4;
}
/* 标签 */
.title .label{
  width: 100%;
  padding: 0px 2%;
  position: absolute;
  top: 70px;
  left: 0;
  right: 0;
  margin: 0 auto;
  z-index: 3;
  opacity: 0;
}
.title .label >span{
  transition: all 0.2;
  display: inline-block;
  padding: 0px 10px;
  font-size: 13px;
  cursor: pointer;
}
.user_name_bg{
  width: 100%;
  height: 100%;
  display: none;
  position: fixed;
  top: 0;
  left: 0;
}
.title #user_name .user_name_o{
  width: 100%;
  height: 100%;
  background: #fff;
  position: absolute;
  top: 0px;
  left: 0px;
  z-index: 2;
}
.title #user_name #exit-login{
  width: 100%;
  height: 40px;
  color: #fff;
  line-height: 40px;
  background: #999;
  position: absolute;
  top: 0px;
  left: 0px;
  z-index: 1;
  transition: all 0.2s;
}
.title #user_name #exit-login a{
  display: block;
  width: 100%;
  height: 100%;
  color: #fff;
  outline: none;
  text-decoration: none;
}

/* 内容 */
.content{
  padding: 5% 5%;
}
.card-box{
  float: left;
  width: 20%;
  height: 375px;
  padding: 10px;
}
.card-box .card{
  width: 100% !important;
  height: 100% !important;
}
.content .card-img-top{
  width: 100%;
  height: 200px;
  overflow: hidden;
  border-bottom: 3px solid #eee;
}
.content .card-img-top img{
  width: 100%;
  height: auto;
}
.content .card-text{
  height: 50px;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
  overflow: hidden;
}